630355256 has 32 divisors (see below), whose sum is σ = 1192289760. Its totient is φ = 312423552.

The previous prime is 630355249. The next prime is 630355259. The reversal of 630355256 is 652553036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630355259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 848021 + ... + 848763.

It is an arithmetic number, because the mean of its divisors is an integer number (37259055).

Almost surely, 2^630355256 is an apocalyptic number.

It is an amenable number.

630355256 is a deficient number, since it is larger than the sum of its proper divisors (561934504).

630355256 is a wasteful number, since it uses less digits than its factorization.

630355256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 35.

The square root of 630355256 is about 25106.8766675586. The cubic root of 630355256 is about 857.4229941587.

The spelling of 630355256 in words is "six hundred thirty million, three hundred fifty-five thousand, two hundred fifty-six".